Electronic device and color temperature adjusting method

Abstract

An electronic device with a camera and a display that can output light to achieve a desired appearance of skin tone is provided. The display outputs light having a color temperature for lighting during picture taking. The electronic device analyzes a color temperature value of a capturing environment and compares that value with a preset value, calculates a difference value according to the comparing, and controls the display to adjust the color temperature of the light accordingly. A color temperature adjusting method of the electronic device is also provided.

What is claimed is: 
     
       1. An electronic device, comprising:
 a camera for capturing a picture; and 
 a display displaying a graphical user interface (GUI) and outputting light for lighting during picture taking;
 a face identifying module identifying at least one face in the picture to be captured by the camera; 
 a color temperature determining module analyzing a color temperature value from a part of the at least one face of the picture; 
 a brightness determining module analyzing a brightness value from a part of the at least one face of the picture; and 
 a processor; 
 
 wherein the electronic device stores a color temperature preset value and a brightness preset value; and
 the processor compares the analyzed color temperature value and the analyzed brightness value of the at least one face in the picture to be captured with the color temperature preset value and the brightness preset value, and calculates a color temperature difference value and a brightness difference value; and controls the display to adjust a color temperature and a brightness of the light according to the color temperature difference value and the brightness difference value. 
 
 
     
     
       2. The electronic device as claimed in  claim 1 , further comprising:
 a color temperature sensor detecting a color temperature value of a present capturing environment; and 
 the processor comparing the detected color temperature value of the present capturing environment and the color temperature preset value, and calculating the color temperature difference value according to the comparing, and controlling the display to adjust the color temperature of the light according to the color temperature difference value. 
 
     
     
       3. The electronic device as claimed in  claim 1 , further comprising:
 a color temperature sensor detecting a color temperature value of a present capturing environment; 
 a brightness sensor detecting a brightness value of the present capturing environment; and 
 a processor comparing the detected color temperature value and the detected brightness value of the present capturing environment with the color temperature preset value and the brightness preset value, and calculating the color temperature difference value and the brightness difference value according to the comparing, and controlling the display to adjust the color temperature and the brightness of the light according to the color temperature difference value and the brightness difference value. 
 
     
     
       4. The electronic device as claimed in  claim 1 , wherein the display and the camera are arranged on a same side of the electronic device and are used together for capturing pictures, the color temperature and the brightness of the light output by the display provide lighting to a capturing environment of the camera. 
     
     
       5. The electronic device as claimed in  claim 1 , wherein the GUI allows a user to select and reset the color temperature preset value and the brightness preset value. 
     
     
       6. The electronic device as claimed in  claim 1 , wherein the GUI allows a user to selectively switch on or off a color temperature adjusting function of the electronic device. 
     
     
       7. A color temperature adjusting method of an electronic device, the color temperature adjusting method comprising:
 storing a color temperature preset value and a brightness preset value; 
 displaying a graphical user interface (GUI) by a display of the electronic device; 
 outputting light by the display for lighting during picture taking; 
 capturing a picture by a camera of the electronic device; 
 identifying at least one face in the picture to be captured by the camera; 
 analyzing a color temperature value and a brightness value from a part of the at least one face in the picture to be captured; 
 comparing the analyzed color temperature value and the analyzed brightness value of the at least one face in the picture to be captured with the color temperature preset value and the brightness preset value; 
 calculating a color temperature difference value and a brightness difference value according to the comparing; and 
 controlling the display to adjust a color temperature and a brightness of the light according to the color temperature difference value and the brightness difference value. 
 
     
     
       8. The color temperature adjusting method as claimed in  claim 7 , further comprising:
 detecting a color temperature value of a present capturing environment by a color temperature sensor; 
 comparing the detected color temperature value of the present capturing environment and the color temperature preset value; 
 calculating the color temperature difference value according to the comparing; and 
 controlling the display to adjust the color temperature of the light according to the color temperature difference value. 
 
     
     
       9. The color temperature adjusting method as claimed in  claim 7 , further comprising:
 detecting a color temperature value of a present capturing environment by a color temperature sensor; 
 detecting a brightness value of the present capturing environment by a brightness sensor; 
 comparing the detected color temperature value and the detected brightness value of the present capturing environment with the color temperature preset value and the brightness preset value; 
 calculating the color temperature difference value and the brightness difference value according to the comparing; and 
 controlling the display to adjust the color temperature and the brightness of the light according to the color temperature difference value and the brightness difference value. 
 
     
     
       10. The color temperature adjusting method as claimed in  claim 7 , wherein the display and the camera are arranged on a same side of the electronic device and are used together for capturing pictures, the color temperature and the brightness of the light output by the display provides lighting to a capturing environment of the camera. 
     
     
       11. The color temperature adjusting method as claimed in  claim 7 , wherein the GUI allows a user to select and reset the color temperature preset value and the brightness preset value. 
     
     
       12. The color temperature adjusting method as claimed in  claim 7 , wherein the GUI allows a user to selectively switch on or off a color temperature adjusting function of the electronic device. 
     
     
       13. The color temperature adjusting method as claimed in  claim 7 , further comprising:
 selecting a first mode or a second mode based on the GUI; 
 analyzing the color temperature value and the brightness value of the at least one face of the picture in the first mode; and 
 detecting the color temperature value and the brightness value of the present capturing environment by the color temperature sensor and the brightness sensor in the second mode.